coxal gland — ▪ zoology in certain arthropods, one of a pair of excretory organs consisting of an end sac where initial urine is collected, a tubule where secretion and reabsorption may take place, and an excretory pore at the base (coxa) of one of the… … Universalium
coxal gland — noun : one of certain paired glands with ducts opening in the coxal region of arthropods and in some forms (as spiders) functioning as excretory organs … Useful english dictionary
Gilson's glands — (ARTHROPODA: Insecta) In Trichoptera, thoracic glands homologized to coxal glands or nephridia … Dictionary of invertebrate zoology
podocephalic glands — (ARTHROPODA: Chelicerata) In actinotroch Acari, ancestrally four glands near the base of leg I; anterior, median, coxal, and lateral glands … Dictionary of invertebrate zoology
arachnid — arachnidan /euh rak ni deuhn/, adj., n. /euh rak nid/, n. 1. any wingless, carnivorous arthropod of the class Arachnida, including spiders, scorpions, mites, ticks, and daddy longlegs, having a body divided into two parts, the cephalothorax and… … Universalium
excretion — excretion1 /ik skree sheuhn/, n. 1. the act of excreting. 2. the substance excreted, as urine or sweat, or certain plant products. [1595 1605; < LL excretion (s. of excretio) that which is sifted out. See EXCRETE, ION] excretion2 /ik skree… … Universalium
spider — spiderless, adj. spiderlike, adj. /spuy deuhr/, n. 1. any of numerous predaceous arachnids of the order Araneae, most of which spin webs that serve as nests and as traps for prey. 2. (loosely) any of various other arachnids resembling or… … Universalium
Arachnid — Taxobox name = Arachnida image width = 250px image caption = Arachnida from Ernst Haeckel s Kunstformen der Natur , 1904 regnum = Animalia phylum = Arthropoda subphylum = Chelicerata classis = Arachnida classis authority = Cuvier, 1812… … Wikipedia
acarid — /ak euh rid/, n. 1. an acarine, esp. a mite of the family Acaridae. adj. 2. of or pertaining to an acarid. [1875 80; ACAR(US) + ID2] * * * ▪ arachnid Introduction any member of the subgroup of the arthropod class Arachnida that includes the … Universalium
Tick — For other uses, see Tick (disambiguation). Ticks Adult deer tick, Ixodes scapularis Scientific classification Kingdom … Wikipedia